If you were adopted, piecing together your biological family’s medical history takes a combination of legal requests, registry searches, genetic tools, and proactive healthcare strategies. No single approach gives you the complete picture, but used together, they can fill in many of the blanks. Here’s how to work through each option.
Start With Your Adoption Agency or Court Records
The most direct route to medical information is through the agency that handled your adoption or the court that finalized it. Every state maintains what’s called “non-identifying information” in adoption files, and much of it is medically relevant. In Illinois, for example, state law requires that adoptive parents receive detailed medical and mental health histories of the child, the birth parents, and their immediate relatives. Even if your adoptive parents never received this packet, or lost it over the years, the agency or court may still have the original file.
Non-identifying information typically includes the birth parents’ ages, race, ethnic background, general physical appearance, and sometimes details about birth grandparents and their country of origin. It won’t include names or addresses, but it can reveal conditions like diabetes, heart disease, cancer, or mental health diagnoses that ran in your biological family. To request it, contact the agency that placed you or the court in the county where your adoption was finalized. Most states allow adult adoptees to request this information directly, though processing times vary from weeks to months.
Check Whether Your State Allows Birth Certificate Access
Your original birth certificate, which lists your biological parents’ names, was sealed when your adoption was finalized and replaced with an amended version. Access to that original document varies dramatically by state. As of recent counts, only about 10 states offer adult adoptees unrestricted access to their original birth certificates: Alabama, Alaska, Colorado, Connecticut, Kansas, Maine, New Hampshire, New York, Oregon, and Rhode Island. Several more states have passed access laws since then, so check your state’s current rules.
If you were born in a restricted state, you may need to petition the court for access, which usually requires demonstrating “good cause.” Medical need can strengthen your case. Some states also allow a confidential intermediary, a court-appointed person who contacts the birth parent on your behalf and asks whether they’re willing to share information. Even if they decline direct contact, many birth parents will agree to provide updated medical history through an intermediary.
Register With a Mutual Consent Registry
Mutual consent registries exist so that adoptees and birth parents who both want contact can find each other without either party’s privacy being violated. The International Soundex Reunion Registry (ISRR) is one of the oldest and most widely used. You can get a registration form online or by mail, and anyone 18 or older is eligible to register, whether you’re the adoptee, a birth parent, or an adoptive parent registering on behalf of a minor. When your information is entered into the system, it’s matched against existing registrations. If the system finds a match and confirms the relationship, both parties are notified immediately.
Many individual states also run their own mutual consent registries. Some are passive (they only match if both parties register), while others are active (the state will attempt to contact the other party when you register). Check both your birth state’s registry and the ISRR, since your biological relatives may have registered with one but not the other.
Use DNA Testing Strategically
Consumer DNA tests from companies like AncestryDNA and 23andMe can connect you with biological relatives who have also tested, and those relatives may be able to share family medical history directly. This is often the fastest path to finding biological family members, though results depend on whether close relatives have tested. Even a second or third cousin match can help a skilled search angel or genetic genealogist work backward to identify your birth parents.
Beyond finding relatives, some DNA tests screen for genetic health risks. These consumer-grade health reports can flag carrier status for certain inherited conditions or elevated risk for things like age-related macular degeneration or celiac disease. They are not comprehensive medical tests, though. If you want a deeper look, ask your doctor about clinical genetic screening. A genetic counselor can help you decide which panels make sense based on your ethnicity, sex, and any symptoms or concerns you already have. This is especially useful if you have no family history at all to guide standard risk assessments.
International Adoptees Face Extra Hurdles
If you were adopted from another country, retrieving medical background is harder but not impossible. For adoptions from countries that participate in the Hague Convention on Intercountry Adoption, child welfare officials in the sending country are required to gather documentation on the child’s identity, social history, and medical background before the adoption is finalized. That information should have been provided to the adoption agency and your adoptive parents. If your parents don’t have it, contact the agency that facilitated the adoption to request a copy of your file.
For non-Hague adoptions, or adoptions from countries with less organized record-keeping, the paper trail may be thin or nonexistent. In these cases, DNA testing and genetic counseling become even more important as alternative sources of health information. Some international adoptees also work with in-country searchers or organizations that specialize in adoption record retrieval for specific countries like South Korea, China, or Colombia.
How to Handle Medical Visits Without Family History
While you’re working to uncover your biological background, you still need to manage your health in the present. The good news: doctors can provide excellent care even without a family history. Standard screening tools for common conditions like cardiovascular disease and cancer rely on factors they can measure directly, including cholesterol levels, blood pressure, mammography, and colonoscopy results. These screenings catch most of the conditions that family history would have flagged as higher risk.
When filling out intake forms, write “adopted, family history unknown” rather than checking “no” for every condition. Checking “no” implies your family had no history of these diseases, which could lead your doctor to underestimate your risk. Writing “unknown” signals that you may need a more cautious screening approach. Some doctors will recommend starting certain screenings earlier or running them more frequently when family history is a complete blank, such as beginning colonoscopies before the standard age.
It’s also worth knowing that many adoptees feel a real sense of frustration or grief when confronted with family history questions repeatedly. That reaction is normal and widely recognized in the medical community. If your doctor isn’t responsive to your situation, it’s reasonable to look for one who is. Pediatricians and adoptive parents can also help younger adoptees build comfort with managing their health information so the transition to adult healthcare feels less overwhelming.
Build Your Own Medical History Going Forward
Whatever you’re able to uncover about your biological family, start building a thorough personal medical record now. Track your own health events, diagnoses, surgeries, medication reactions, and screening results in one place. If you eventually have children, this becomes their family medical history. Every piece of information you gather, whether from adoption records, DNA tests, or your own health experience, adds to a document that grows more useful over time.
If you do make contact with biological relatives, ask specifically about heart disease, cancer (and which types), diabetes, autoimmune conditions, mental health diagnoses, and causes of death for older relatives. These are the conditions most influenced by genetics and most useful for guiding your preventive care. Even partial information, like knowing one birth parent had high blood pressure, can meaningfully change how your doctor approaches your screenings.